一种新型的聚苯乙烯二乙醇胺树脂对铜离子的吸附性能  

Adsorption of Polystyrene Diethanolamine Resin for Cupric Ion

作　　者：王燕芹[1] 魏荣卿[1] 刘晓宁[1] 刘迎[1] 

机构地区：[1]南京工业大学制药与生命科学学院,江苏南京210009

出　　处：《过程工程学报》2007年第1期49-53,共5页The Chinese Journal of Process Engineering

基　　金：科技部创新基金资助项目(编号:05C26213200578);南京市创新基金资助项目(编号:200407011)

摘　　要：用氯乙酰化聚苯乙烯树脂(PS-Acyl-Cl)取代常用的原料氯甲基化聚苯乙烯(PS-CH2-Cl)树脂,固载二乙醇胺(DEA)得到一新型的聚苯乙烯二乙醇胺(PS-Acyl-DEA)树脂.用这种PS-Acyl-DEA树脂对铜离子进行吸附,并研究了其吸附动力学和吸附等温线.结果发现,树脂对铜离子的吸附量随DEA担载量的增加而增加,对铜离子的最大吸附量可达3.79mmol/g,且在pH5.6～10.5范围内树脂对铜离子均有稳定的吸附量,树脂的吸附率达到93.8%.The new polystyrene diethanolamine resin （PS-Acyl-DEA） was synthesized by the reaction of diethanolamine （DEA） with chloracetylated polystyrene （PS-Acyl-Cl） instead of chloromethylated polystyrene （PS-CH2-Cl） which is commonly used. The adsorption kinetics and isotherms of obtained product for cupric ion were studied. The results showed that the adsorption capacity increased as the increasing loading of the product and was steady in the environment with the pH values between 5.6 and 10.5. The Cu^2＋ adsorption quantity was 3.79 mmol/g and the adsorption rate of the resin to cupric ions was up to 93.8%.

关 键 词：氯乙酰化聚苯乙烯 聚苯乙烯二乙醇胺树脂 吸附 铜离子 

分 类 号：O631[理学—高分子化学]